Means for securing a light reflector or light diffuser



'r. A. STIFFEL 3,231,734 MEANS FOR SECURING A LIGHT REFLECTOR 0R LIGHT DIFFUSER Jan. 25, 1966 Filed Sept. 19. 1963 3.231.134 Patented Jan. 25, 1906 3 31,734 MEAN R SECU NG A LIGHT REFLECTOR 8 F LIGHT DIFFUSER 0R 'lhcophlle A. Stiltel, 525 W. Superior St. Chicago, Ill. Filed Sept. 19, 396 See. No. 309,922 2 Claims.- (3 240-81) This invention relates to means for securing a light reflector or light difiuser.

One of the obiects of this invention is to provide unproved means for detachably securing a light reflector or a difiusing shade to a lighting fixture.

Another object of this invention is to provide improved means for securing a light reflector or difiusiug shade to alarnp or lighting structure.

Under present practice the light reflector or drlfnsrng ahadeisoonnectedtotheshellorcanopyotallooror table lamp or lighting fixture by means of screws, which due to vibration or wear and tear have a tendency to loosen. Thisinmrnwillrelearetheholdontheshade or reflector and permit it to vibrate with respect to its supporting structure. It also results in an inefiective securing means. with the present invention these objectionable features are eliminated in that set screws or other threaded fastening elements for fastening the shade are eliminated and in lieu thereof therein provided means for detachably seeming a diltusiug shade or reflector to a light More, sueh as a floor lamp, table lamp, or the like,merelybyinsertingthc shadeordiliuserinitssoclret or bolder without requiring the use of any adjustable or manually operated adjusting parts.

Other objects will become apparent as this description men es- In the drawings:

FIG. 1 is a perspective view of a floor lamp showing tbedill'usingbulborlampshadesupportedinaccordanoewitlrthisinvention.

FIG. 2 is an enlarged sectional view showing the mannerinwhichtheshadeorlampdilfnserissupportedin accordance with this invention.

FIG. 3 is a view taken on lines 3-3 of FIG. 2.

FIG. 4 is a fragmentary perspective view partially broken away showing the invention herein secured in the canopy.

FIG. 5 is a perspective view of the strip prior to its being shaped to form a circle or split ring.

FIG. 6 is a fragmentary sectional view showing the position ofthesbade ordilfuseras it iseither being inserted or being withdrawn, and

FlG.7isasectionalviewofamodifiedc0nstruction.

this invention is shown in connection with a floor lamp, it will be understood that it may be used with table lamps, or with any other type of lighting fixture. Also, with this invention the shade or difi'using member my: supported uspended from above, that is, the shade tion as that shown herein.

The conventional lloor lamp designated by the numeral 10 has a post 12 on which is supported a canopy or shell generally designated by the numeral 14. The canopy or shell 14 is provided with an annular outwardly tapering shoulder 16 and an enlarged annular upper portion or mouth 18 which terminates in an inwardly extending annular flange or lip 20. The shape of the canopy or shell ldisconventional.

Adapted to be supported within the upper end or mouth of the canopy or shdl is an annular or ring-like shaped strip generally ted by the numeral 22, which is provided with means for detachably securing the difiusing bulb or shade member. The strip 22 is formed of a and is first shaped as shown in FIG. 5. that ls,-ot rectangular shape, and is punched from the body of the strip to form a plurality of spaced inwardly extending e lingers, or logo, generallyderignated by the alone .24 thereby forming an opening or slot 25 in said body for each such finest. Bach finger is provided with an inwardly and downwarrb ly inclined wall 26 wblchis bent to form a lower vertically extending 2Q pnralleiwith the body of the TheedgeMis as shown in H0. 5.

springy metal material Afterthestrip-hasbeen it is then shaped to form a ring-like member which is split,suehasbestshown inl 'lGS.3and4. inthieiorm itisinsertedinthemouthofthecanopyorshellsothat stripizrestsagainsttheupperend between the uppereudoftheshoulder 16 andtheiuwanlly extending flange or lip 20 of the canopy. The annular-strip mustbereducedindiametertobeinserted intotlrernouthottheeanopyduetothetlange20,and thisisaecomplishedbym l p flt floppositecuds floithering-likemembern After-tl'rering-likernemberzlisinsertedinthecanopy thespringineaoftheuretaiwillcauseittooocopythe spaceasainstthewallofthemouthofthecanopyina firmsecuredposition. Theopposite ends 28 oitheannular ring-lilre member will be adjacent each other with a small spacing therebetween, as best shown in FIG. 4. The ring-like member 22 thus in ellect becomes a permanentpartoftheeanopyandduetothespringinecsot themetalofthestripwillcauseitloexpandwithinthe mouthofthecanopyandhugthewallllrmly.

The conventional shade or difiusing reflector generally designatedbythenumeralflisprovidedwithaneck dcsignatedbythenurneralu. Ashoulderuisprovided attheinnerendoftheneckandtheneckcurvesinwardly andthenoutwardlytoprovidenncnlargedbeadportion aattheouterendofrheneck. Tosecuretheshadein posiriontheshadeisinsertedsothatrheneckoftheshade entersthenrouthoftlrecanopy,asshowninFlG.6,arrd thebeadportiunfloftheshadewheninsertedwillengagethefingersltasshowninl iafltocompremor pushthemoutwardlyinrhedirectionoftheslotoropeninglstoailowthebeadedenduofthenecktopass mnlterwhiehthe normalpositiomshownin sin-fan portion 38m securely hold the shade tionandwherein theshoulder-Mrests extending flange llloftlrecanopy l4.

Withthe extendingfingers engagingthe neclr, ushowmtheshadeordeflectorwillbelirmlyrecuredin themornhofthecanopysuflicienttoren'stvibrationbetweentheshadeandthecanopyands fllcienttoresist anyaccidenalremovaltheret'rorn. ltwillbe however, that shoulditbeconreneeeesaryordeshable to removetheshadehorntbesbellorcanopyitmayberemovedbyerertingapullingforce againsttheshndeand withnsuflicieutpullingloroethecurvedsurfaeeofthe nedtoftheshadewillcallsethefingertobepressed outwardly in the direction shown in FIG. 6, suflicient to allowtheshadetobe lnposiontheinwardly 14. The modified canopy or shell is designated by the numeral 14 and is formed preferably ofmetalandsurne isprovidedwiflrtheinwardlyextcndiug lip 30 and tapering shoulder 16', similar to that previshell or canopy 14 is punched or formed with spaced inwardly extending ears, fingers or lugs generally designated by the numeral 24,

lfiandthehodyofthestripisconlined.

thereby forum 3 an mm; or slat 25} in 1:91; ch such flngef, B125 '11 provided, with all inwardly and downwardly iacllnedwall M'Jvhich isbent to form a lower verticallyeuending well 39". The ed metal material of the canqliy'bave mint 'sprlaginess or resiliency so that they will function in the ner as that previously described in manning-With l fingers 24. The shade oi'difiu siaimlec tor PM and securegl inthe saniemanner 85 that previou'aly is ehown as tlmtfiey'wduldbexe- The shade would be [Bid is efieetiveiy and etficiemly as lll ltshoyn in the qnwm s herein.

in relationavh s an" p' dv ded with a should" 2:: at; open end buiifvardly ggaidihwlder, with the shade hating-.1! peckspqnipgmp bead n the outer end at them wp gl lg' cdnfimq within QM and 111m- 7 W Y roman mm 11/1913 Austria.

8/1912 GnatBfitain.

NORTON ANSHER. Primm Examiner. C. C. LOGAN, Am'um Examiner. 

1. MEANS FOR DETACHABLY SUPPORTING A SHADE OR THE LIKE IN RELATION TO A LIGHTENING FIXTURE HAVING A CANOPY PROVIDED WITH A SHOULDER AND AN OPEN END OUTTWARDLY OF SAID SHOULDER, WITH THE SHADE HAVING A NECK PORTION AND A BEAD AT THE OUTER END OF THE NECK, SAID CANOPY HAVING MEANS WHOLLY CONFINED WITHIN SAID CANOPY AND RETAINED THEREWITHIN BY SAID CANOPY BETWEEN THE SHOULDER AND THE OPEN END, SAID MEANS COMPRISING A PLURALITY OF SPACED INWARDLY EXTENDING FINGERS ADAPTED TO ENGAGE THE BEAD OF THE SHADE FOR SECURING THE SHADE WHEN THE NECK OF THE SHADE IS INSERTED INTO THE CANOPY. 